Sillurians

An ambitious drilling project into the Earth's crust has begun, but now the ground is fighting back, and Amy has been snatched into its recesses. What dangers lie beneath? Meera Syal (Kumars at No. 42) guest stars.

Final figures for episode eight, The Hungry Earth, published by BARB show it was watched by 6.49
million viewers. The figure is an increase of over two million on the initially reported
overnights, implying many recorded the programme to watch it later.

On BBC One the programme got 6.01 million watching where it was the
ninth most watched programme for the channel for the week. An additional
0.48 million watched on BBC HD. When added together the programme
totalled 6.49 million viewers.